344 
XCI. APOCYNACEiE. 
[ Ervatamia . 
Selangor, Kwala Lumpur (Curtis). Perak, Goping (Kunstler). 
Penang, West Hill (Curtis). Native names: Lada-Lada Hutan, 
and L. jantan; Puding hutan; Gurang; Lagundi Bulan; 
Lelada padi; Perachit; Penyoi; Perachek. Use: In syphilis, 
and leaves and sap for poulticing boils. Roots said to be poisonous. 
(g) E. Curtisii King and Gamble, l.c. 453. 
Shrub. Leaves membranous, lanceolate caudate, base narrow; 
nerves 9 to 12 pairs; 3 to 6 in. long, 1 to 1*5 in. wide; petioles -2 to 
•3 in. long, base stem-clasping. Cymes terminal or axillary, lax, 
6- to io-flowered; peduncles slender, ’5 to 1 in. long; pedicels 
*5 to *6 in. long. Calyx-lobes linear acute, ‘15 in. long, unequal. 
Corolla-tube *6 to 7 in. long, lobes crisped, narrow oblong, *5 in. 
long. Follicles ovoid beaked, orange colour, 1 to 1*5 in. long. 
Seeds 6 to 8, angular, aril crimson, ’25 in. through. Hab. Pahang, 
Kwala Lipis (Machado). Perak, Kwala Wok (Wray). Penang, 
Waterfall (Curtis) to Highlands. 
(10) E. cylindrocarpa King and Gamble, 452. 
Shrub 4 to 6 ft. tall. Leaves membranous, lanceolate to oblong, 
caudate-acuminate, base narrowed, 4 to 7 in. long, 1 to 2'5 in. 
wide; petioles ’25 in. long. Cymes axillary and terminal; 
branches spreading; peduncles ’5 to 1 in. long. Flowers few in 
a cyme, white with a yellow eye. Calyx-lobes lanceolate acute. 
Corolla - 4 to *5 in. long, glabrous, lobes oblong, spreading, *5 in. 
long. Follicles cylindric, nearly straight, acute at both ends, up 
to 3 in. long. Seeds up to 10, ovoid, *3 in. long. Hab. Woods 
and forests up to 4000 ft. altitude. Malacca, Sungei Ruluh (Good- 
enough). Selangor, Jalan Liang (Burn-Murdoch). Semangkok Pass. 
Dindings. Perak, Temengoh; Bujong Malacca; Sungkei and Ulu 
Bubong (Kunstler). Province Wellesley, Permatang Bertam. 
(Ridley). 
13 . DYERA, Hook. fil. 
Very large trees; branches whorled. Leaves large coriaceous, 
whorled oblong-ovate; nerves prominent. Cymes panicled terminal 
umbellate branched. Flowers small, white. Calyx small 5-lobed. 
Corolla salver-shaped, tube short, throat naked, lobes 5. Stamens 
5, included; anthers oblong, connective prolonged. Ovary 
2-celled, entire, tip pubescent; ovules many; style o or minute; 
stigma obpyriform. Follicles 2, divaricate, woody, very large, 
opening flat. Seed elliptic, thin, flat, surrounded by a papery 
wing, oblong. Species 3, Malaya. 
Commonly known as “ Jelutong,” and valued for the latex. 
This is very abundant and watery, and is set into a white mass 
plaster when treated with hot water, and used for adulterating 
rubber, as a substitute for plaster of paris for picture moulding 
and other purposes. The wood, soft and white, used for Chinese 
clogs, models, boxes and inner partitions for houses. 
